Yep! As that video shows, eruvs are built with lots of poles and wires, which can come down due to construction or bad weather. It's important for observant jews to confirm that the eruv is "up" before they rely on it to carry on Shabbat
Judaism never fails to impress me since since I discovered the YouTube series from Peter Santenello about hasidic jews (https://www.youtube.com/watch?v=4YTmrCLeidc&list=PLEyPgwIPkH...)
Eruvs often make use of existing walls, utility poles and cables which are on public property, but if any extra poles or wires are needed they are paid for entirely from donations.